Doweling device.



E. J. WOLGAMOUD.

DOWELING DEVICE.

APPLIGATION FILED 11113.14', 1910.

Patented May 19, 1914.

Shocwroz witnesses @Hoz/nua PLANOORAPH co.. WASI-IIN ELIAS J. WOLGAMOOD,OF COLORADO CITY, COLORADO.

DOWELING DEVICE.

Specification of Letters Patent.

Patented May 19, 1914.

Application filed March 1-4, 1910. Serial N o. 549,126.

To all 'wiz-0m t may concern Be it known that I, ELIAS J. lJVoLGAMooD, acitizen of the United States, residing at Colorado City, in the countyof El Paso and State of Colorado, have invented new and usefulImprovements in Doweling Devices, of which the following is aspecification.

My invention relates to doweling devices and more particularly to asimple, compact and cheaply constructed device which may be easilytransported from place to place together with other tools usuallycarried by a wood worker in the course of his trade.

I ain aware that doweling tools similar to mine in general constructionare now in use upon lathes and other similar machines, but as myinvention is not to be used in connection with any machine, but is atool complete in itself and made so as to be easily trans ported fromplace to place, it is thought these machine attachments do not in anyway concern my present invention.

It is an object of my invention to provide a small but efficient deviceto be used in connection with the ordinary brace and bit and providedwith means for guiding the bit so that the latter will not be permittedto swerve and so produce any irregularity in the dowel hole.

Another object of my invention is to produce such a tool which willprovide means for making holes for dowel pins in two pieces of wood sothat the holes are exactly corresponding with one another, being thesame distance apart or located in any desired position in the wood.

A still further object of my invention is the provision of simple meansof adjustment so that the dowel holes may be placed any requireddistance apart without measuring and marking the location of the holesin the wood as is at present necessary.

A still further object is to provide such a tool as above pointed outwhich can be adapted to receive bits of different sizes and can be usedto make dowel holes in wood of various thicknesses, and which can befastened in operative position by means of a suitable clamp or the like.

llVitli the foregoing and other objects in view, my invention consistsof such details of construction and arrangement and combination 'ofparts as will be hereinafter more fully described and specificallypointed out in the claim.

In describing my invention in detail referlence will be had to theaccompanying drawings in which like characters denote like orcorresponding parts throughout the several views and in which Figure lis a view in side elevation of my invention. Fig. 2 is a sectional viewtaken o n line -m of Fig. l. Fig, 3 is a view in side elevation showingthe side opposite to that illustrated in Fig. l. Fig. 4 is a top planView more clearly disclosing the holes in the guides which holes aredesigned to receive the bits.

Referring to the drawings it will be seen that I provide a plate l ofsuitable size which plate is preferably made of metal, but which it willbe understood may be made of any other material adapted to the purpose.Approximately one half of the plate l is covered with a second plate 2which is detachably connected to the base plate by means of screws 3.The outer surface of the plate 2 may be rougliened if desired in orderthat a better purchase upon the work being drilled may be obtained. Ablock 4 preferably of chilled steel is placed upon one of the corners ofthe plate l, one end of said block being in Contact with an edge of tliedetachable plate 2. I have shown the block 4 in the drawings as beingheld in place by screws 5, but it will be understood that said block maybe cast integral with the plate l if so desired. Piercing the block 4longitudinally and disposed nearer one side thereof than the other, isan aperture 6 which is of Sullicient diameter t0 snugly receive the bitto be used in drilling the dowel hole. It will be seen that the size ofthe hole 6 will vary in different cases in order to accommodate bits ofdifferent diameters. A

The numeral 7 designates an indicator formed upon the surface of theblock 4 in order to disclose the exact position of the center of theaperture 6.

A guide-way 8 is mounted upon the plate y 1 and extends from one side ofthe block 4 across said plate and terminates flush with one edgethereof. Said guide-way is dovetailed into the guide block l0 which isadjustable thereon. upon the guide-way 8 for the convenience of theworker in adjusting the block 10 in position. Approximately parallel tothe guide-way S and disposed upon either side, thereof, are slots 9formed in the plate 1, said slots 9 terminating at one end short of theblock 4 and at the other end short of A scale may be indicated Cit theedge of the plate 1. An aperture corresponding in diameter to theaperture G extends through the block l0 as shoivn at 1l, the center ofwhich aperture is indicated by a line or other mark 12 made upon theblocklO. The adjustable block may be fastened in any desired position bymeans of thumb screws 13 which are slidable in the slots 9 and Whichenter screw-threaded apertures in the block l0.

It is thought that the operation of my invention will be readilyapparent from the foregoing description. The plate l is first clampedagainst the face of a board or plank, the edge of which is to be drilledin order to receive the doivel pins. This brings the plate 2 against theside of the board and disposes the blocks 4 and 10 in a positionperpendicular to the edge of the board which is to be drilled. The bitmay then be inserted successively in the holes 6 and l1 and the doivelholes bored cleanly and Without permitting the bit to siverve from itsperpendicular position. After the holes have been drilled in one pieceof Wood, the tool may be removed and clamped to the second piece Withoutchanging the adjustment of the guide blocks. It will be seen, therefore,that the holes in the tivo pieces of Wood Will be exactly the samedistance apart, and Will both be drilled cleanly so that the tivo boardswill be perfectly joined.

If the location for the doivel holes has been marked upon one piece ofWood, my tool may be clamped in place so that the indicators 7 and 12exactly coincide with the marks. Thus the dowel holes may be drilledWithout trouble. If on the other hand it is desired to drill one holeand then place the second hole a certain distance from the first thismay be easily accomplished by means of the scale upon the guide-Way S.It is pointed out that several adjustable blocks similar to 10 may beplaced upon the guide-Way if occasion should so demand, and if it isnecessary to drill holes of diiferent sizes, the blocks 4 and l0 may beremoved and replaced by blocks having apertures of larger diameter.

The plate 2 is made removable in order that the tool may be used inconnection With boards of different thicknesses. Vith the plate in placethe device Will receive two pieces of Wood of a certain thickness andmay be operated to drill the hole exactly midway of the edges thereof,but if it is desired to employ my invention in connection With a boardof greater thickness, the plate may be removed in a short time andWithout inconvenience in order that the doivel holes may be in correctposition.

Heretofore when it was desired to join two pieces of Wood by the use ofdoivel pins, it was necessary for the Wood Worker to lay off and markeach piece of Wood so that the holes were corresponding and then todrill the holes With the ordinary brace and bit. l't quite often happensthat the brace is not properly held in a vertical position or that thegrain of the Wood, or a knot therein,

causes the bit to vary from its perpendicu-V lar course so that when thepieces of Wood are joined together their surfaces will be uneven andWill not correspond. For this reason it has been found extremelydiiiicult to use the doivel oint, and at the same time, secure thoroughWork. By means of my invention doiveling can be done very rapidly andwith absolute accuracy and the device is so simple and cheap that theexpense and manufacture is insignificant.

It Will be understood that slight changes in the construction and in thecombination of the several parts may be resorted to Without deviatingfrom the spirit of my invention providing such changes fall Within thescope of the appended claim.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is As a means for guiding bits in drillingdowel holes in the edge of a board, a plate adapted to be clampedagainst the side of a board With one portion of the plate projectingabove the edge of the board, guide members each provided with a bore forguiding a bit, one of said guide members being fixed to the base platein overhanging relation With respect to the edge of the board and Withthe axis'of its bit-guiding bore at right angles to the plane of theboard edge, the other of said members being slidably mounted on thatportion of the base plate projecting above the board edge to be adjustedparallel with the board edge, and means for locking said adjustablesliding member in position, substantially as described.

ELL-XS J. VOLGAIQGD.

Witnesses T. C. TURNER, Gro. H. EWING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

